package cn.itcast.bos.web.action.base;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import javax.persistence.criteria.CriteriaBuilder;
import javax.persistence.criteria.CriteriaQuery;
import javax.persistence.criteria.Join;
import javax.persistence.criteria.JoinType;
import javax.persistence.criteria.Predicate;
import javax.persistence.criteria.Root;

import org.apache.commons.lang3.StringUtils;
import org.apache.struts2.convention.annotation.Action;
import org.apache.struts2.convention.annotation.Namespace;
import org.apache.struts2.convention.annotation.ParentPackage;
import org.apache.struts2.convention.annotation.Result;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Scope;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.PageRequest;
import org.springframework.data.domain.Pageable;
import org.springframework.data.jpa.domain.Specification;
import org.springframework.stereotype.Controller;

import cn.itcast.bos.domain.base.Courier;
import cn.itcast.bos.domain.base.Standard;
import cn.itcast.bos.service.base.ICourierService;
import cn.itcast.bos.utils.BaseAction;

import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionSupport;
import com.opensymphony.xwork2.ModelDriven;

@ParentPackage("json-default")
@Namespace("/")
@Controller
@Scope("prototype")
public class CourierAction extends BaseAction<Courier> {
	
	@Autowired
	private ICourierService courierService;
	//保存快递员数据
	@Action(value = "courier_save", results = { @Result(name = "success", type = "redirect", location = "/pages/base/courier.html") })
	public String save() {
		courierService.save(model);
		return SUCCESS;
	}
/*
	// 属性注入
	private int page;
	private int rows;

	public void setPage(int page) {
		this.page = page;
	}

	public void setRows(int rows) {
		this.rows = rows;
	}*/

	// 查询分页数据
	@Action(value = "courier_pageQuery", results = { @Result(name = "success", type = "json") })
	public String pageQuery() {

		Specification<Courier> specification = new Specification<Courier>() {
			// Root 用于获取属性字段，CriteriaQuery可以用于简单条件查询，CriteriaBuilder 用于构造复杂条件查询
			@Override
			public Predicate toPredicate(Root<Courier> root,
					CriteriaQuery<?> query, CriteriaBuilder cb) {
				// 创建list集合
				List<Predicate> list = new ArrayList<Predicate>();

				// 简单单表查询
				if (StringUtils.isNotBlank(model.getCourierNum())) {
					Predicate p1 = cb.equal(
							root.get("courierNum").as(String.class),
							model.getCourierNum());
					list.add(p1);
				}
				if (StringUtils.isNotBlank(model.getCompany())) {
					Predicate p2 = cb.like(
							root.get("company").as(String.class),
							"%" + model.getCompany() + "%");
					list.add(p2);
				}
				if (StringUtils.isNotBlank(model.getType())) {
					Predicate p3 = cb.equal(root.get("type").as(String.class),
							model.getType());
					list.add(p3);
				}
				// 多表查询
				Join<Courier, Standard> standardJoin = root.join("standard",
						JoinType.INNER);
				if (model.getStandard() != null
						&& StringUtils.isNotBlank(model.getStandard()
								.getName())) {
					Predicate p4 = cb.like(
							standardJoin.get("name").as(String.class), "%"
									+ model.getStandard().getName() + "%");
					list.add(p4);
				}
				return cb.and(list.toArray(new Predicate[0]));
			}
		};

		// 调用业务层,查询数据结果
		Pageable pageable = new PageRequest(page - 1, rows);
		Page<Courier> pageDate = courierService.findPageDate(specification,
				pageable);
		
		/*// 创建map集合
		Map<String, Object> map = new HashMap<String, Object>();
		map.put("total", pageDate.getTotalElements());
		map.put("rows", pageDate.getContent());
		// 值栈
		ActionContext.getContext().getValueStack().push(map);*/
		
		// 调用方法   值栈
		pushPageDataToValueStack(pageDate);
		return SUCCESS;
	}
	
	//属性注入
	private String ids;
	public void setIds(String ids) {
		this.ids = ids;
	}
	
	@Action(value = "courier_delBatch", results = { @Result(name = "success",type="redirect",location = "./pages/base/courier.html") })
	public String delBatch() {
		String [] idArray=ids.split(",");
		courierService.delBatch(idArray);
		return SUCCESS;
	}

}
